On Thu, Oct 10, 2013 at 08:06:23AM -0500, Jeffrey Bastian wrote: > I tried slowing down the rsync with > nice -n19 ionice -c3 rsync --bwlimit=1024K ... > but that didn't help. I tried cgroups is a bigger hammer to throttle I/O, but it didn't help either. [root@trimslice ~]# ls -l /dev/sda brw-rw----. 1 root disk 8, 0 Dec 31 1969 /dev/sda [root@trimslice ~]# echo "8:0 131072" > /sys/fs/cgroup/blkio/blkio.throttle.write_bps_device [root@trimslice ~]# cat /sys/fs/cgroup/blkio/blkio.throttle.write_bps_device 8:0 131072 I then started with a fresh file system and copied /boot: [root@trimslice ~]# mkfs.ext3 -L boot /dev/sda1 [root@trimslice ~]# mount /dev/sda1 /mnt/boot [root@trimslice ~]# rsync -xav /boot/ /mnt/boot/ It took much longer with the throttled writes, but eventually the kernel started spewing errors: [ 9949.502220] hub 1-0:1.0: cannot reset port 1 (err = -110) [ 9949.731333] hub 1-0:1.0: cannot reset port 1 (err = -110) [ 9949.736725] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 9949.968686] hub 1-0:1.0: cannot reset port 1 (err = -110) [ 9950.197669] hub 1-0:1.0: cannot reset port 1 (err = -110) [ 9950.426677] hub 1-0:1.0: cannot reset port 1 (err = -110) [ 9950.655722] hub 1-0:1.0: cannot reset port 1 (err = -110) [ 9951.298181] end_request: I/O error, dev sda, sector 165122 [ 9951.303676] Buffer I/O error on device sda1, logical block 81537 [ 9951.309667] Buffer I/O error on device sda1, logical block 81538 [ 9951.315657] Buffer I/O error on device sda1, logical block 81539 [ 9951.321647] Buffer I/O error on device sda1, logical block 81540 [ 9951.327676] Buffer I/O error on device sda1, logical block 81541 [ 9951.333670] Buffer I/O error on device sda1, logical block 81542 [ 9951.339661] Buffer I/O error on device sda1, logical block 81543 [ 9951.345651] Buffer I/O error on device sda1, logical block 81544 [ 9951.351687] Buffer I/O error on device sda1, logical block 81545 [ 9951.357680] Buffer I/O error on device sda1, logical block 81546 [10069.419378] hub 1-0:1.0: cannot reset port 1 (err = -110) [10069.648520] hub 1-0:1.0: cannot reset port 1 (err = -110) Oh well. I guess I'll just keep /boot on the SD card. Hopefully the Utilite works a little better. Thanks! Jeff _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
